A rational approximation to <VV-AA> and its O(p^6) low-energy constant

Details A rational approximation to <VV-AA> and its O(p^6) low-energy constant A rational approximation to <VV-AA> and its O(p^6) low-energy constant

2008-01-23

arxiv.org/abs/0801.3558v2

Phys.Lett.B663:61-65,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 figure. Comments and references added. Journal version

Scientific paper

10.1016/j.physletb.2008.03.040

Using a sequence of rational approximants and the large-Nc limit of QCD, we
estimate the value of the low-energy constant C_87 which appears in the
Lagrangian of Chiral Perturbation Theory at O(p^6).

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